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| 482 | Wellux Air Con & Electrical Pte Ltd
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| 483 | Well Link Probusiness Service Pte. Ltd.
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| 484 | Watchguard Technologies, Inc
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| 485 | Weldtech Inspection Services (s) Pte Ltd
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| 486 | Welch Allyn S'pore Pte Ltd
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| 487 | Wtt Insurance Agencies Pte Ltd
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| 488 | World Farm Co Pte Ltd
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| 489 | World Of Golf
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| 490 | World Scientific Publishing Co Pte Ltd
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| 491 | Winning Marketing
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| 492 | Wing Kok Markets
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| 493 | Wilco Oilfield Services Pte. Ltd.
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| 494 | Wila Fabric Wash & Clean Specialist
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| 495 | Weichern Pte Ltd
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| 496 | Wee Heng Auto Air Con & Accessories
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| 497 | Wenzel Asia Pacific Pte Ltd
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| 498 | Weico Int'l Pte Ltd
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| 499 | Way Onnet Group Pte Ltd
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| 500 | Welead Pte. Ltd.
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| 501 | Wee Lee Music Centre
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| 502 | Wth Pte. Ltd.
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| 504 | Woofercraft Multimedia Pte Ltd
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| 505 | Woodlands Domestic Electrical Pte Ltd
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| 506 | Woh Hup Holdings Pte Ltd
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| 507 | Wine Culture Pte. Ltd.
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| 508 | Winrich Int'l Pte Ltd
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| 509 | Whizz Work Pte Ltd
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| 510 | Westech Electronics Ltd
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